Our main products as follows: 1. The new type of high efficiency forging steel ball. This kind steel ball is one of our major products, It's major character is that: high hardness, no breakage, no wearing, lower price. It is used in cement plants, mines, power stations etc. Hardness: surface HRC 55-60 Core HRC 50-55 Breakage rate≤1%. 2. The high chrome cast grinding ball. Hardness: surface HRC 58-65 Core HRC 55-60 Breakage rate ≤1%. 3. RCAB new material steel ball (chromium and rare-earth alloy steel grinding balls). It was only produced in China. It was applied for a lot of fields: cement plants, mines, power stations, chemical industry, etc. The high hardness of the steel ball. The hardness from surface to core is uniformity. The hardness of surface can reach 60-65, the core can reach >HRC58, the different of the hardness from surface to core only is HRC2-3, there is no other kind grind ball can reach this level. 1. Product Name: Cast iron grinding balls 2. Standard ball sizes are as follows: Ball Diameter (nominal) mm-----(nominal) Inches 20mm 4/5 inch 25mm 1 inch 30mm 1 1/4nch 40mm 1 1/2nch 50mm 2 inch 60mm 70mm 80mm 3 1/4inch 90mm 3 1/2 inch 100mm 4 inch 110mm 4 1/4 inch 120mm 4 3/4inch 3. A full range hardness we provided in standard sizes: Minimum Hardness: Brinell Rockwell C Chromium (%) BHN400 HRC 43 non-chromium BHN480 HRC 50 Cr: 1.0~3.0 BHN560 HRC 55 Cr: 7.0~10.0 BHN615 HRC 58 Cr: 10.0~16.0; Cr: 16.0~22.0; Cr: 22.0~28.0; 4. Low Chrome cast iron balls Chemical Elements (%): C: 2.0~3.60 Mn: 0.50-1.50; Cr: 1.0-5.0; Si: 1.5Max; P: 0.10 Max, S: 0.10 Max; 5. Middle chrome cast iron balls Chemical Elements (%): C: 2.0~3.20 Mn: 0.50-1.50; Cr: 7.0-10.0; Si: 0.5-2.20; P: 0.10 Max, S: 0.10 Max; 6. High chrome cast iron balls ZQCrG1--Chemical Elements (%): C: 2.0~3.20 Mn: 0.50-2.50; Cr: 10.0-16.0; Si: 1.0 Max; P: 0.10 Max, S: 0.06 Max; Cu: 1.0Max; Mo: 1.0 Max ZQCrG2--Chemical Elements (%): C: 2.0~3.20 Mn: 0.50-2.50; Cr: 16.0-22.0; Si: 1.0 Max; P: 0.10 Max, S: 0.06 Max; Cu: 1.0Max; Mo: 1.0 Max ZQCrG3--Chemical Elements (%): C: 2.0~3.20 Mn: 0.50-2.50; Cr: 22.0-28.0; Si: 1.0 Max; P: 0.10 Max, S: 0.06 Max; Cu: 1.0Max; Mo: 1.0 Max Products all-round properties: High Hardness, better wear resistance, even wearing Breakage rate of ball: 2.0% Max; Dropping test: 8000 times minimum with 3.5 meter dropping test machine. Impact fatigue life test: Ak. =3 J/CM2 Minimum 7. Packages: By flexible container bags (1000kg/bag), or by steel drums (850kgs-900kgs/drum) Note: Technical staff in consultation with the customer can advise the optimum product for your application if possible, please feel free to contact us. Product Description Our wrought iron includes: Gates and doors, windows, stairs, fence, balusters, forged bar, spearheads, stairway, panel, stud, scroll and decorative steel ball etc. We are looking for the business partner who is reliable, so that we could cover the market. If you are interested in cooperating with us, we'll quote the best price and give you the prior for a long time meanwhile you are sincerely welcomed to our company for a visit.